An independent variable in an experimental study, which is manipulated by the investigator at will, is technically known as a:

Which of the following best defines a dependent variable in a research study?

In experimental research, a variable that is manipulated or presumed to cause a change in another variable is called a/an:

In an experiment to determine which of two 'Yoga Exercises' is better at reducing the fat of urban people of different age groups, which of the following is an intervening variable?